AC_DEFUN([DOVECOT_WANT_LUA],[

AC_ARG_WITH([lua],

[AS_HELP_STRING([--with-lua=yes|plugin], [build Lua Bindings])],

[with_lua=$withval],

[with_lua=no]

)

AC_MSG_CHECKING([whether we will be linking in Lua])

AS_IF([test "x$with_lua" = "xplugin"], [

with_lua_plugin=yes

with_lua=yes

])

AC_MSG_RESULT([$with_lua])

AS_IF([test "x$with_lua" != "xno"],

[for LUAPC in lua5.3 lua-5.3 lua53 lua5.2 lua-5.2 lua52 lua5.1 lua-5.1 lua51 lua; do

PKG_CHECK_MODULES([LUA], $LUAPC >= 5.1, [

AC_DEFINE([HAVE_LUA], [1], [Define to 1 if you have lua])

with_lua=yes

], [LUAPC=""]) # otherwise pkg_check will fail

if test "x$LUA_LIBS" != "x"; then break; fi

done

])

AS_IF([test "x$with_lua" = "xyes"], [

AC_MSG_CHECKING([for chosen LUA])

AS_IF([test "x$LUAPC" = "x"], [

AC_MSG_ERROR([cannot find lua]),

],[

AC_MSG_RESULT([$LUAPC])

])

])

AS_IF([test "x$with_lua" = "xyes"],

AS_IF([test "x$with_lua_plugin" != "xyes"],

AC_DEFINE([BUILTIN_LUA],, [Lua support is builtin])

)

)

])